Regular Hexagon Calculator
Enter the side length of a regular hexagon, a six sided shape with equal sides, to find its area, perimeter, apothem and both the long and short diagonals.
How to use the hexagon calculator
- Enter the side length of the regular hexagon.
- Read the area and perimeter instantly.
- See the apothem and the long and short diagonals too.
Examples
Side length 10
side = 10
area = 259.8076, perimeter = 60, apothem = 8.6603, long diagonal = 20, short diagonal = 17.3205
Side length 1 (unit hexagon)
side = 1
area = 2.5981, perimeter = 6, apothem = 0.8660, long diagonal = 2, short diagonal = 1.7321
Frequently asked questions
What is a regular hexagon?
A regular hexagon is a six sided polygon with all sides equal and all interior angles equal to 120 degrees. It tiles the plane without gaps.
What is the formula for the area of a regular hexagon?
The area equals three times the square root of three divided by two, times the side length squared. A side of 10 gives an area of about 259.8076.
What is the apothem of a hexagon?
The apothem is the distance from the center to the midpoint of a side. For a regular hexagon it equals the square root of three over two times the side.
What are the long and short diagonals?
The long diagonal runs corner to opposite corner and equals twice the side. The short diagonal skips one corner and equals the square root of three times the side.
How long is the perimeter?
Since a regular hexagon has six equal sides, the perimeter is simply six times the side length.
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